Qhov sib txawv tseem ceeb ntawm lub cev thiab qhov chaw sib txawv yog qhov kev sib txawv ntawm lub cev yog hais txog kev sib txawv ntawm hom lossis kev npaj ntawm cov khoom hauv ib qho chaw thoob plaws lub sijhawm thaum spatial heterogeneity yog qhov sib txawv hauv hom lossis kev npaj ntawm cov khoom thoob plaws qhov chaw.
Heterogeneity yog lub hauv paus tus yam ntxwv ntawm ecological systems. Nws tuaj yeem txhais tau tias yog qhov sib txawv lossis ntau haiv neeg hauv hom lossis kev teeb tsa ntawm cov khoom sib txuas lossis cov koom haum. Thaum cov kev sib txawv no tshwm sim thoob plaws qhov chaw, nws yog hu ua spatial heterogeneity. Thaum qhov sib txawv no tshwm sim thoob plaws lub sijhawm, nws yog lub npe hu ua temporal heterogeneity. Hauv ecology, spatial thiab temporal heterogeneity raug suav hais tias yog qhov yuav tsum tau kawm ua ntej rau kev kawm txog kev sib raug zoo ntawm cov txheej txheem ecological. Li no, heterogeneity nyob rau hauv qhov chaw thiab lub sij hawm yog ib qho tseem ceeb feature ntawm ecological systems.
Tam sim no yog dab tsi?
Temporal heterogeneity yog qhov hloov pauv ntawm hom lossis kev npaj ntawm cov khoom hauv ib puag ncig thoob plaws lub sijhawm. Nws tseem tuaj yeem txhais tau tias yog qib uas cov zej zog hloov pauv lub sijhawm. Nws yog ib qho tseem ceeb uas tso cai rau kom muaj kev sib txawv ntawm cov kab mob. Lub sijhawm heterogeneity yuav tsum tau txais kev saib xyuas ntau dua thaum ua tus cwj pwm ecosystems. Spatial heterogeneity thiab hom lifespan yog qhov tseem ceeb ntawm kev kwv yees ntawm lub sijhawm nyob hauv zej zog heterogeneity. Kev twv ua ntej ntawm lub cev heterogeneity yog qhov tseem ceeb rau kev tswj hwm ntawm ecosystem qauv thiab kev ua haujlwm. Tsis tas li ntawd, kev siv lub cev ntawm lub cev tuaj yeem siv los piav txog tag nrho cov kev sib cuam tshuam ntawm cov kab mob abiotic thiab biotic yam uas cuam tshuam txog lub sijhawm thiab kev siv peev txheej.
Spatial Heterogeneity yog dab tsi?
Spatial heterogeneity yog hais txog kev faib tsis sib xws ntawm ntau qhov sib txawv ntawm txhua hom hauv ib cheeb tsam. Nws tshwm sim los ntawm toj roob hauv pes. Yog li ntawd, lub toj roob hauv pes nrog ib tug spatial heterogeneity muaj kev sib xyaw ntawm ntau hom nroj tsuag thiab tsiaj txhu, thiab kuj muaj ntau yam yam ntxwv ib puag ncig. Nws tuaj yeem yog spatial hauv zos heterogeneity lossis spatial stratified heterogeneity.
Daim duab 02: Spatial Heterogeneity
Spatial heterogeneity yog qhov tseem ceeb hauv kev nkag siab txog kev ua haujlwm toj roob hauv pes thiab cov txheej txheem spatial ecological. Spatial heterogeneity tuaj yeem ntsuas tau raws li cov peev txheej, suav nrog cov qauv av, kev sib txawv ntawm cov nroj tsuag, biomass, tsiaj faib, thiab lwm yam. Spatial heterogeneity yog qhov taw qhia ntxov ntawm kev hloov pauv ntawm tsoomfwv.
Dab tsi yog qhov zoo sib xws ntawm Temporal thiab Spatial Heterogeneity?
- Spatial heterogeneity tej zaum yuav yog ib qho kev kwv yees ntawm lub cev tsis sib haum xeeb hauv cov zej zog ecological.
- Lawv kev sib raug zoo yuav yog cov cuab yeej cuab tam ntawm ntau thaj av thiab hauv dej.
- Kev hloov pauv ib puag ncig thoob ntiaj teb yog tus tsav tsheb loj ntawm ob lub sijhawm ntawm lub cev thiab qhov chaw sib txawv.
- Ob leeg, spatial thiab temporal heterogeneity rau ib qhov chaw yog xam siv Bray-Curtis Performance index ntawm dissimilarity.
- Cov peev txheej suav nrog lub teeb, dej, thiab cov khoom noj muaj peev xwm nthuav tawm ob qho tib si spatial thiab temporal heterogeneity.
- Kev nce spatial thiab ib ntus heterogeneity nyiam ua ntej lub xeev hloov pauv hauv ecosystems.
Qhov txawv ntawm Temporal thiab Spatial Heterogeneity yog dab tsi?
Qhov sib txawv tseem ceeb ntawm lub cev thiab qhov chaw sib txawv yog qhov sib txawv ntawm lub cev ntawm lub cev, kev sib txawv ntawm hom lossis kev npaj ntawm cov khoom hauv ecosystem tshwm sim hais txog lub sijhawm thaum nyob rau hauv spatial heterogeneity, ntau haiv neeg hauv hom lossis kev npaj ntawm cov khoom hauv ecosystem tshwm sim. hla qhov chaw. Nyob rau hauv lwm yam lus, temporal heterogeneity yog variation rau ib tug point ntawm lub sij hawm thaum spatial heterogeneity yog variation nyob rau hauv qhov chaw horizontally los yog vertically.
Summary – Temporal vs Spatial Heterogeneity
Temporal, spatial thiab functional heterogeneity yog peb hom heterogeneity. Temporal heterogeneity yog kev sib txawv ntawm hom lossis kev npaj ntawm cov neeg koom nrog thoob plaws lub sijhawm. Spatial heterogeneity yog hais txog kev sib txawv ntawm hom lossis kev npaj ntawm cov neeg nyob thoob plaws qhov chaw. Yog li, qhov no yog qhov sib txawv ntawm lub cev thiab qhov chaw sib txawv.
